Pd-catalyzed nucleophilic allylic alkylation of aliphatic aldehydes by the use of allyl alcohols
作者:Masanari Kimura、Masamichi Shimizu、Shuji Tanaka、Yoshinao Tamaru
DOI:10.1016/j.tet.2005.02.005
日期:2005.4
Under catalysis of Pd(OAc)2-(P-n-Bu)3, Et2Zn promotes a variety of allyl alcohols to undergo nucleophilic allylation of aliphatic aldehydes and ketones at room temperature and provides homoallyl alcohols in 60–90 and ca. 60% isolated yield, respectively. The reaction is irreversible and kinetically controlled, and unique regio- and stereoselectivities observed for the allylation with unsymmetrically
在Pd(OAc)2-(P- n- Bu)3的催化下,Et 2 Zn促进各种烯丙醇在室温下经历脂肪族醛和酮的亲核烯丙基化反应,并在60-90和90内提供均烯丙基醇。分离产率分别为60%。该反应是不可逆的并且是动力学控制的,并且讨论了用不对称取代的烯丙醇进行烯丙基化时观察到的独特的区域选择性和立体选择性。